Pfaff ClassicStyle 2025 Owner's Manual page 63

Buttonhole tips:
• A wider, less dense buttonhole is recommended on
heavy fabrics.
• Use presser foot No. 1 for buttonholes that are to be
sewn very close to a reinforced edge.
• Materials that shift or stretch easily should be reinforced
with water-soluble, tissue paper or other lightweight
stabilizer.
• Keyhole buttonholes are particularly stable and durable
if a gimp thread is inserted while sewing (see "Keyhole
buttonhole with gimp thread").
• Linen buttonholes are particularly dense and attractive if
you use buttonhole twist thread.
• Buttonholes are normally selected a little larger than
the button diameter. It is important to always sew a test
buttonhole on the same fabric/stabilizer as your project
Buttonholes
5:7